![]() Try resizing the example below to see this in action. The cover value specifies that the background image should be sized so that it is as small as possible while ensuring that both dimensions are greater than or equal to the corresponding size of the container. The contain value specifies that, regardless of the size of the containing box, the background image should be scaled so that each side is as large as possible while not exceeding the length of the corresponding side of the container. Special values: "contain" and "cover"īesides values, the background-size CSS property offers two special size values, contain and cover. Here we scale a 32x32 pixel favicon to 300x300 pixels:Īs you can see, the CSS is actually essentially identical, save the name of the image file. On the other end of the spectrum, you can scale an image up in the background. You can also specify both the horizontal and vertical sizes of the image, like this: background-size: 300px 150px ![]() The first value sets the width, the second value sets the height. To do this, we can use a fixed background-size value of 150 pixels. CSS background-size Property length, Sets the width and height of the background image. You can customize the width of the scrollbar as required. We want (for some reason likely involving horrifyingly bad site design) to tile four copies of this image into a 300x300-pixel element. The CSS scrollbars styling module defines properties that you can use for visual styling of scrollbars. ![]() Let's consider a large image, a 2982x2808 Firefox logo image. With the CSS property background-size, you can resize background images and change the default behavior of tiling them at full size. By doing so, you can scale the image upward or downward as desired. CSS Syntax background-image: url noneinitialinherit Property Values More Examples Example Sets two background images for the element.īut what if we don’t know the aspect ratio of the image and we get a square cat picture? Won’t our cat be squished? Yes, yes it would, poor cat.The background-size CSS property lets you resize the background image of an element, overriding the default behavior of tiling the image at its full size by specifying the width and/or height of the image. Let’s look at the different options we have to size images while keeping their aspect ratio in check. This is bad news for your page performance.īest to set the intended size so the browser can reserve space. We can resize images proportionally with HTML image tags or CSS background styles. This will most likely cause the browser to render the page twice, because after the height of the image is updated all items below the image are pushed down. Sometimes, it crops the little bit off one of the edges or stretches the. The browser will render the page, wait for the image source to load, and then update the height of the image element. cover: This value is used to resize the background image to cover the entire container. If we want it to show a bit smaller we can set the width to 240, the browser will then automatically calculate the height to be 180. Imagine we have a cat picture with an aspect ratio of 4:3, in other words, it’s dimensions are 4032 × 3024, that’s a lot of cat. Our first choice is to set only one size property, either width or height, the browser will automatically calculate the size of the other edge. We can resize images proportionally with HTML image tags or CSS background styles. ![]() Sometimes images are just too big to display on the web page.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |